Home / 28,483,172.64-39,306,615.84-15,430,685.76

Finding the Fourth Proportional to 28,483,172.64, 39,306,615.84 and 15,430,685.76

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Solution

The fourth proportional to 28,483,172.64, 39,306,615.84 and 15,430,685.76 is: 21,294,258.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,483,172.64 : 39,306,615.84 = 15,430,685.76 : x
  2. Step 2: Convert to fraction form
    28,483,172.64/39,306,615.84 = 15,430,685.76/x
  3. Step 3: Cross multiply
    28,483,172.64x = 39,306,615.84 × 15,430,685.76
  4. Step 4: Simplify right side
    28,483,172.64x = 606,528,037,316,078.50
  5. Step 5: Solve for x
    x = 606,528,037,316,078.50/28,483,172.64
  6. Step 6: Final answer
    x = 21,294,258.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.